Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
phat xuc » chat xuc, phat xuat, phap xu
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
xuc va » duc va, tuc va, luc va
va dao » ca dao
vi va » vai va, vu va, bi va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thuat san)) ky nang xa hoi. hieu va phat xuc va dao ((vi va) OR (vi van)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat san)) ky nang xa hoi. hieu va phat xuc va dao ((vi va) OR (vi van)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuat san)) ky nang xa hoi. hieu va phat xuc va dao ((vi va) OR (vi van)) triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat san)) ky nang xa hoi. hieu va phat xuc va dao ((vi va) OR (vi van)) triet*.